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Re: [cross-project-issues-dev] Oxygen.1aRC1: Maven fails with org.codehaus.plexus.classworlds.launcher.Launcher when running with JDK 9

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On Wed, Oct 4, 2017 at 9:26 AM, Arthur van Dorp <Arthur.vanDorp@xxxxxxxxxxxxxxxx> wrote:

Hi all


As the RC2 window already closes and the final Oxygen.1a contributions are due soon, I bring up the following issue directly on this list:


On the EPP RC1 with only a JDK 9 as installed JRE, calling Maven commands fails with

Error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher

Caused by: java.lang.ClassNotFoundException: org.codehaus.plexus.classworlds.launcher.Launcher

Switching to a JDK 8 resolves the problem.


Steps to reproduce:

*New workspace

*File/New Other…/Maven/Maven Project/Create dummy project

*Select project folder/Right click/Run As…/Maven clean


I’ve reproduced this under Windows 7 and the Scout EPP package. To make sure it isn’t a Scout issue I’ve tested with a post RC1 EPP package of Eclipse Java too.


Has anyone else experienced this? Is anyone else able to reproduce it?


Thanks and regards



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